6.5.1

Create a Resource Pool
You can create a child resource pool of any ESXi host, resource pool, or DRS cluster.
N If a host has been added to a cluster, you cannot create child resource pools of that host. If the cluster
is enabled for DRS, you can create child resource pools of the cluster.
When you create a child resource pool, you are prompted for resource pool aribute information. The
system uses admission control to make sure you cannot allocate resources that are not available.
Prerequisites
The vSphere Web Client is connected to the vCenter Server system.
Procedure
1 In the vSphere Web Client navigator, select a parent object for the resource pool (a host, another
resource pool, or a DRS cluster).
2 Right-click the object and select New Resource Pool.
3 Type a name to identify the resource pool.
4 Specify how to allocate CPU and memory resources.
The CPU resources for your resource pool are the guaranteed physical resources the host reserves for a
resource pool. Normally, you accept the default and let the host handle resource allocation.
Option Description
Shares
Specify shares for this resource pool with respect to the parent’s total
resources. Sibling resource pools share resources according to their relative
share values bounded by the reservation and limit.
n
Select Low, Normal, or High to specify share values respectively in a
1:2:4 ratio.
n
Select Custom to give each virtual machine a specic number of
shares, which expresses a proportional weight.
Reservation
Specify a guaranteed CPU or memory allocation for this resource pool.
Defaults to 0.
A nonzero reservation is subtracted from the unreserved resources of the
parent (host or resource pool). The resources are considered reserved,
regardless of whether virtual machines are associated with the resource
pool.
Expandable Reservation
When the check box is selected (default), expandable reservations are
considered during admission control.
If you power on a virtual machine in this resource pool, and the combined
reservations of the virtual machines are larger than the reservation of the
resource pool, the resource pool can use resources from its parent or
ancestors.
Limit
Specify the upper limit for this resource pool’s CPU or memory allocation.
You can usually accept the default (Unlimited).
To specify a limit, deselect the Unlimited check box.
5 Click OK.
After you create a resource pool, you can add virtual machines to it. A virtual machine’s shares are relative
to other virtual machines (or resource pools) with the same parent resource pool.
Chapter 9 Managing Resource Pools
VMware, Inc. 57